9 Dec
2009
9 Dec
'09
5:18 a.m.
On Tuesday, December 8, 2009 at 19:47, Tony Duell wrote:
Are you sure?
Yes.
I don't have a 9134A, but I've worked on (and
have schemaitcs) for the
9133 V/XV and 9133H. The 9133 is, of course, a 9134 with a floppy
drive (and maybe a seprate controller card) added. As far as I can
rememebr, all those units use the Intel 8291 GPIB chip.
There were several different controller cards used in these, including
different ones for the same model, depending on the date code.
Can you please check the 9134A uses a 9914.
See "HP's 5 1/4-Inch Winchester Disc Drive Service Documentation" (part
number 09134-90032, August 1983). Section II, page 1-4 says, in part:
"The HP-IB bus controller (9914 HP-IB chip) manages the data transfers
across the HP-IB channel."
This is from the section entitled, "Winchester Controller PCA Theory of
Operation (88134-69910, 09135-69515, and 09135-69501)." The last part
number is the one in my 9134A.
There's a photograph of the card on page 1-8, and you can see the 9914 chip
on the board.
The 9133V and XV used controller part number 09133-69508, according to
Section III, page 1-2 of the aforementioned manual. Section III, page 1-5
says that controller uses an 8291A.
-- Dave